Liquid delivery apparatus



Jan. 4, 1938. G. w. STEDWELL LIQUID DELIVERY APPARATUS Original Filed Sept. 17, 1930 INVENTOR Ill Patented Jan. 4, 1938 UNITED STATES PATENT OFFICE G r e W.

Keystone Controls, Inc., New York, corporation of New York Stedwell, Brooklyn, N. Y., assignor to N. Y., a

Original application September 17, 1930, Serial No. 482,410. Divided and this application May 24, 1935, Serial No. 23,137

-8 Claims.

The present invention is a division of my copending application Serial No. 482,410, filed September 17, 1930.

I The present invention relates to the delivery of gasoline and other liquids in metered quantities as covered in Hawxhurst Reissue Patent 17,558, wherein the return of the hose nozzle to its normal support efiects an interlocking of parts automatically preventing delivery operation while the hose remains in such supported relation.-

Special objects of this invention are to improve on the structure and operation disclosed in the patent referred to and to provide simpler and more desirable apparatus.

Other purposes and advantages, as well as the novel features comprising the invention, will appear as the specification proceeds.

The drawing accompanying and forming part of the specification illustrates several of the many possible embodiments of the invention, it being. understood however that the structure may be further modified all within the broad spirit and scope of the invention.

Fig. 1 is a broken front elevation of a gasoline livery hose l 0. This hose is shown equipped with means for effecting flow control in the form of a nozzle valve I I actuated by a hand lever 12 protected by a handle guard [3. This guard is shown as slotted at M back of the valve handle to fit over an upstanding supporting lug l5, which in the relation illustrated holds the valve handle so that it cannot be operated. In this supported relation, the tip of the nozzle passes up through an opening in the side of the stand shown at IS in Fig. 2, whereby the nozzle is firmly supported and operation of the valve handle is then prevented.

The pump is indicated as operated by an electric motor ll. This motor is controlled by a switch l8. The restoration of the nozzle to the supporting hook serves to automatically stop the operation of the pump, in the first form of the invention illustrated, by means of the nozzle guard l3 engaging and operating a push button I9 connected with the switch actuating lever 20. For throwing the switch to start the motor, a

. push button 2| is provided, but actuation of this push button is prevented when the nozzle is on the hook by the connection of this lever through a rocking lever 22 with the o button IS, the same constituting in effect a walking beam" connection between the two push buttons l9 and To use the apparatus, the nozzle is lifted off the hook. This frees the nozzle valve lever and leaves the switch free to be thrown to the on position, the latter operation being effected by pushing in on the button 2|. With the closing of the switch, the pump is started and liquid may then be delivered from the hose under control of the nozzle valve, the meter disclosing any amounts thus delivered. Delivery can be instantly terminated by releasing grip on the hand lever to close the nozzle valve.

When a delivery is completed, the nozzle is restored to the hook and in so doing, the guard strikes the off button I9 of the hook forcing the same inward and causing the switch to stop the pump. Thus by simply hanging up the hose in its supported relation, an interlocking of parts is effected, whereby unauthorized or accidental discharge of liquid is automatically prevented.

The structure shown in Figs. 2 and 2a is generally similar to that described, possibly, the main distinction being that the tip of the nozzle instead of the nozzle guard is utilized to throw the switch to the "ofi position upon the restoration of the nozzle to supported relation. Thus, in place of the upper or o push button, the rocking lever 22 is provided with an extension l9a having a function equivalent to the push button I!) and extending across the'nozzle opening I6 into the direct path of the nozzle, so as to be engaged and shifted by the latter "as the nozzle is placed on the hook. Also, the hook difiers fact that the guard is entered sidewise on the hook and the end of the nozzle instead of the guard efiects the ofi" movement of the switch, the operation may be considered the same as in the first il ustration.

In the form of the invention shown in Figs. 3 and 4, the switch is directly operated by hand instead of through the medium of the hose nozzle, by means of a rock shaft 21 carrying a lever 28 engaged with a switch lever and provided outside the case with a hand lever 29, which under operating conditions of the pump stands in the way of the nozzle restoration and is in turn held against operation when the nozzle is on the hook. The hook here designated 30 is shown as having an upstanding lug [51b received in a recess 3| in the side of the guard and adapted to stand back of the nozzle valve lever i2, Fig. 4. In this supported position, the switch lever 29 in its upper, "05 position is in line with and held against operation by the hand lever l2. Consequently, the nozzle valve can not be opened and the pump cannot be started when the nozzle is supported on the hook. The removal of the nozzle from the hook however, leaves the nozzle valve free for operation and uncovers the switch lever 29, so that it may be turned down to the on position of the pump illustrated in full lines in Fig. 3. In this condition it stands in the way of the nozzle guard, thereby effectively preventing the nozzle from being restored to the hook until the switch has first been thrown to stop the pump motor.

The structure in all forms of the invention is simple and positive and automatically prevents improper operation of the apparatus. When the nozzle is placed on the hook, the parts interlock in a way to automatically prevent delivery operations and the pump cannot be started until the hose has been taken off the hook. Further, a positive act on the part of the attendant is necessary even after the hose has been removed from the hook. In Figs. 1 and 2, the push button 2| must be actuated and in Figs. 3, 4, the hand lever 29 must be turned down to the motor starting position. In Figs. 1 and 2, the act of placing the nozzle on the hook shuts ofl the pump motor. Substantially the same result is accomplished in Figs. 3 and 4 in that the nozzle can not be placed on the hook until the lever 29 is turned to throw the switch. When the hose is off the support, the actuating means for the controller is freely operable at all times to stop the pump, so that with the hose off the hook, the pump may be started and stopped at will. Thus with the hose off the hook, the pump may be stopped and the nozzle valve be opened to completely drain the hose. On the other hand, if the hose is restored to the hook full of liquid under pressure, the nozzle handle becomes locked, so that it may not be operated accidentally or otherwise to discharge any of the liquid under pressure held in the delivery line and hose.

What is claimed is:

1. In liquid flow apparatus, a hose having a nozzle, a support for the nozzle structure, liquid flow governing means for the hose, a controller for said liquid flow governing means and push button actuating mechanism for said controller and including inter-connected parts, one positioned to be shifted and held by the nozzle structure upon the placement of the latter on the support and adapted by its interconnection with the other to thereupon secure said other part against operation while the nozzle is on the support and said other part being freed for operating the controller when the nozzle structure is removed from the support.

2. In liquid flow apparatus, the combination of a hose provided with a. nozzle valve, a handle for actuating said nozzle valve, a guard extending about said nozzle valve handle and a support for said nozzle valve, said support being recessed to receive a portion of said guard and laterally extended to permit a lateral shifting movement of the guard in said support and said support having a body portion positioned to enter laterally between the nozzle valve and said handle to prevent operation of the latter when the nozzle guard is shifted laterally as described.

3. In liquid flow apparatus, the combination of a hose provided with a nozzle valve, a handle for actuating said nozzle valve, a guard extending about said nozzle valve handle and a support for said nozzle valve, said support being recessed to receive a portion of said guard and laterally extended to permit a'lateral shifting movement of the guard in said support, said support having a body portion positioned to enter laterally between the nozzle valve and said handle to prevent operation of the latter when the nozzle guard is shifted laterally as described and a shoulder positioned to hold the nozzle guard in said laterally shifted position with the nozzle valve handle held by the body portion aforesaid.

4. In liquid flow apparatus, the combination of a hose provided with a nozzle valve, a handle for actuating said nozzle valve, a guard extending about said nozzle valve handle and a support for said nozzle valve, said support being recessed to receive a portion of said guard and laterally extended to permit a lateral shifting movement of the guard in said support and said support having a body portion positioned to interlock with the nozzle valve handle to prevent operation of the latter when the nozzle guard is shifted laterally as described, said nozzle support comprising a lug and the recess described being extended laterally inwardly from one side of said lug and a shoulder being provided on said lug at the entrance to said recess to hold the inserted guard portion in the laterally shifted relation with the body portion of the lug interlocked with the nozzle valve handle.

5. In an apparatus of the character described, a delivery line terminating in a hose, a nozzle at the free end of the hose, a support for the nozzle when not in use, a motor driven pump arranged to supply the delivery line and hose with liquid under pressure, and means for starting and stopping the pump, said means including a controller having two parts interconnected for movement in mutually opposite directions, one of the parts being so related to the support as to be moved by the nozzle to stop the pump when the nozzle is placed on the support and the other part being movable manually when the nozzle is of! the support to start the pump.

6. An apparatus of the character described, comprising a housing structure, a liquid delivery line passing through the housing and terminating in a flexible hose outside oi. the housing, a nozzle at the free end of the hose, said nozzle comprising a body portion and a spout portion, the housing being provided with an opening to receive the spout portion and a support to receive the body portion when the nozzle is not in use, a liquid flow governing means for the delivery line and hose, a controller for said means having two shittable parts interconnected for movement in mutually opposite directions, one oi. the parts being shiftable manually to start the flow when the nozzle is of! the support and the other part being disposed in such position with respect to said opening as to be shifted by the spout to stop the flow when the nozzle is'returned to the sup p fl. An apparatus of the character described, comprising a housing structure, a liquid delivery line passing through the housing and terminating in a flexible hose outside the housing, a nozzle at the free end of the hose, said nozzle comprising a body portion and a spout portion, the housing being provided with an opening to receive the spout portion and a support to receive the body portion when the nozzle is not in use, a motor driven pump adapted to supply the delivery line and hose with liquid under pres sure, and means for starting and stopping the pump, said means comprising a controller having two shiftable parts interconnected for movement in mutually opposite directions, one of the parts being shiftable manually to start the pump whenthe nozzle is ofi the support and the other part 3 being disposed in such position with respect to said opening as to be shifted by the spout to stop the pump when the nozzle is returned to the support.

8. Dispensing apparatus including a delivery hose having a nozzle provided with a control valve, means carried by the nozzle for actuating the control valve, said nozzle having a guard.

comprising a loop encircling said actuating means, a support for the nozzle. when idle, having locking means adapted to extend transversely into the loop and between the valve-actuating means and the body of the nozzle in order to prevent operation of the actuating means when the nozzle is on the support, said support being formed with a portion adaptedto encircle at least a portion of the guard whereby to provide a recess for receiving the encircled portion.

GEORGE W. SI'EDWEIL. 

